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Event driven communication between two scripts

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I have two concurrent AutoIt processes.
Process "A" occasionally makes a change to the registry that I want process "B" to quickly pick up on.
I could get process B to check the registry value every 100ms. However, I would prefer a neater event driven way of getting process B to invoke a function that reads the registry value when process A changes it. i.e. Process A sets an event aswell as changing the registry.
Process B can't just sit waiting on an event because it has other work to get on with.
Is there a way I can achieve this with AutoIt?


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Search the forum for "Inter process communication". My personal favourite is MailSlot - you can read all about it in this thread, and I posted a test script in this one.


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:


ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area


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Thanks M23,

I did search before I posted but I guess I didn't look hard enough.

I think using WM_COPYDATA is going to be the best solution for my situation and have found a few examples on the forum.




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